U.S. Army Vertical piton
U.S. AMES
c. 1943-1944
U.S. Army Vertical piton
U.S. PRESTON 44
U.S. Army Vertical piton
U.S. VACO 1952
U.S. Army Vertical piton
M  U.S.  B.T.F. 1960
Shown on ebay 6/2025 - seller ry1712
U.S. Army Vertical piton
U.S. MILPAR 1965
U.S. Army Vertical piton
U.S. B.D. 66
U.S. Army Vertical piton
U.S A.D.C. 72
U.S. Army Vertical piton
U.S. ADC 74
U.S. Army Vertical piton
U.S. WYOTT 77
U.S. Army Vertical piton
U.S. A.D.C 1980
US Army vertical pitons
Stamped mark: "US ARMY"
Shown on ebay 6/2025 - seller carrie.sunshine
c........?
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U.S. Army Horizontal piton
U.S AMES
c. 1942-1944
U.S. Army Horizontal piton
U.S. AMES 1944
- Manufacturer mark change in 1944: from being stamped to being printed with paint.
U.S. Army Horizontal piton
U.S. VACO 1952
U.S. Army Horizontal piton
U.S. MB 1957
U.S. Army Horizontal piton
U.S. ADC 73
Photo by: Chris Falkenstein
U.S. Army Horizontal piton
Unmarked piton but has a rounded blade top
U.S. Army Horizontal piton
U.S. WYOTT 77 M